... two axis Angle measurement, lighting source numerical, auxiliaryilluminant brightness numerical, slope.2). Control function: forward, backward, turn ... 264 hardware compression,subtitles, real-time information superposition function, operator information, air pressure,slope, dip angle, ... audio in/out x1, USB interfacex2,power source x15. Power: DC9-18V, ac power consumption is about 500 W6. Protection ...